Filter Results:
(11,646)
Show Results For
- All HBS Web
(11,646)
- People (50)
- News (3,791)
- Research (5,316)
- Events (57)
- Multimedia (164)
- Faculty Publications (2,876)
Show Results For
- All HBS Web
(11,646)
- People (50)
- News (3,791)
- Research (5,316)
- Events (57)
- Multimedia (164)
- Faculty Publications (2,876)
- 28 Oct 2015
- News
The Life And Times of Tom Stemberg
Time Series Experiments and Causal Estimands: Exact Randomization Tests and Trading
We define causal estimands for experiments on single time series, extending the potential outcome framework to dealing with temporal data. Our approach allows the estimation of a broad class of these estimands and exact... View Details
- 2019
- Article
Time Series Experiments and Causal Estimands: Exact Randomization Tests and Trading
By: Iavor I Bojinov and Neil Shephard
We define causal estimands for experiments on single time series, extending the potential outcome framework to dealing with temporal data. Our approach allows the estimation of a broad class of these estimands and exact randomization based p-values for testing causal... View Details
Bojinov, Iavor I., and Neil Shephard. "Time Series Experiments and Causal Estimands: Exact Randomization Tests and Trading." Journal of the American Statistical Association 114, no. 528 (2019): 1665–1682.
- 28 Oct 2016
- News
AT&T, Time Warner, and What Makes Vertical Mergers Succeed
- 14 Dec 2020
- News
Nonprofit Boards: It is Time to Lift Your Gaze and See the System
- November 2002 (Revised May 2003)
- Case
AOL Time Warner Foundation
Focuses on B. Keith Fulton, vice president of the AOL Time Warner Foundation, who is analyzing the results of a new partnership between the foundation and the National Council on Aging. Fulton is considering ways to build upon the partnership's initial success. View Details
Keywords: Nonprofit Organizations; Partners and Partnerships; Communications Industry; Public Administration Industry; Publishing Industry
Barrett, Diana, Cassandra Hanley, and Sarah Aaron. "AOL Time Warner Foundation." Harvard Business School Case 303-014, November 2002. (Revised May 2003.)
- February 2021 (Revised April 2024)
- Case
Shopify: The Conquest for Chinese E-Commerce
By: Jeffrey F. Rayport, Avani Patel, Samantha Lin and Ariel Yang
In mid-2020, Tobias Lütke, CEO of Shopify, faced a critical decision on how to time potential expansion into the China market. Over the prior 15 years, his Canadian software-as-a-service company had grown from a small e-commerce solutions provider to a full service... View Details
Keywords: Timing; Corporate Entrepreneurship; Service Operations; Business Model; Organizational Design; Change Management; Cross-Cultural and Cross-Border Issues; Global Strategy; Health Pandemics; Growth Management; Marketing Strategy; Digital Platforms; Alliances; Partners and Partnerships; Opportunities; Internet and the Web; E-commerce; United States; Canada; China
- November 1991
- Case
Time Inc. and New Magazine Development (A)
By: David J. Collis and Nancy Donohue
Collis, David J., and Nancy Donohue. "Time Inc. and New Magazine Development (A)." Harvard Business School Case 792-043, November 1991.
- Article
Multitasking While Driving: A Time Use Study of Commuting Knowledge Workers to Assess Current and Future Uses
By: Thomaz Teodorovicz, Andrew L. Kun, Raffaella Sadun and Orit Shaer
Commuting has enormous impact on individuals, families, organizations, and society. Advances in vehicle automation may help workers employ the time spent commuting in productive work-tasks or wellbeing activities. To achieve this goal, however, we need to develop a... View Details
Keywords: In-vehicle User Interfaces; Time-use Study; Automated Vehicles; Knowledge Workers; Commuting
Teodorovicz, Thomaz, Andrew L. Kun, Raffaella Sadun, and Orit Shaer. "Multitasking While Driving: A Time Use Study of Commuting Knowledge Workers to Assess Current and Future Uses." International Journal of Human-Computer Studies 162 (June 2022).
- 05 Oct 2013
- News
Time is not money
- 06 Jan 2014
- News
Innovation in turbulent times
- March 2022
- Article
Estimating the Effectiveness of Permanent Price Reductions for Competing Products Using Multivariate Bayesian Structural Time Series Models
By: Fiammetta Menchetti and Iavor Bojinov
Researchers regularly use synthetic control methods for estimating causal effects when a sub-set of units receive a single persistent treatment, and the rest are unaffected by the change. In many applications, however, units not assigned to treatment are nevertheless... View Details
Keywords: Causal Inference; Partial Interference; Synthetic Controls; Bayesian Structural Time Series; Mathematical Methods
Menchetti, Fiammetta, and Iavor Bojinov. "Estimating the Effectiveness of Permanent Price Reductions for Competing Products Using Multivariate Bayesian Structural Time Series Models." Annals of Applied Statistics 16, no. 1 (March 2022): 414–435.
- January 2002 (Revised February 2002)
- Case
Valuing the AOL Time Warner Merger
By: Lynda M. Applegate, Rena Miller and John N Rei
On January 11, 2000, AOL and Time Warner announced their intention to merge, creating what AOL CEO Stephen Case and Time Warner CEO Gerald Levin called the 21st century's first fully integrated communications, media, and entertainment company. This case, prepared from... View Details
Keywords: Mergers and Acquisitions; Management Analysis, Tools, and Techniques; Valuation; Situation or Environment; Media and Broadcasting Industry; Media and Broadcasting Industry
Applegate, Lynda M., Rena Miller, and John N Rei. "Valuing the AOL Time Warner Merger." Harvard Business School Case 802-098, January 2002. (Revised February 2002.)
- September 1994 (Revised May 1995)
- Case
Time Life, Inc. (A)
By: David A. Garvin and Jonathan West
Time Life has historically been a continuity book publisher, selling 20-volume book series via direct mail. Now, however, music and video/TV divisions have been added, and the CEO is trying to craft a strategy that will align the divisions so they can produce... View Details
Keywords: Business Strategy; Corporate Strategy; Business Divisions; Horizontal Integration; Production; Creativity; Alignment; Advertising; Publishing Industry
Garvin, David A., and Jonathan West. "Time Life, Inc. (A)." Harvard Business School Case 395-012, September 1994. (Revised May 1995.)
- 20 Dec 2018
- Blog Post
A Time For Opportunity In Food and Agriculture
business.” More recently his focus has been product strategy and growth strategy. “In the food industry, the diversity of challenges you encounter over time is really compelling” summed up Eisen. At HBS,... View Details
- February 2012 (Revised January 2013)
- Case
The New York Times Paywall
On March 28, 2011, The New York Times website became a restricted site where most of the content was protected behind a "paywall." Users who exceeded the limit of 20 free articles per month were required to pay for either a digital or print subscription. The newspaper... View Details
Kumar, Vineet, Bharat Anand, Sunil Gupta, and Felix Oberholzer-Gee. "The New York Times Paywall." Harvard Business School Case 512-077, February 2012. (Revised January 2013.)
- 01 Apr 2020
- News
SMEs and Covid-19 – a ticking time bomb
- March 24, 2020
- Article
A Time to Lead with Purpose and Humanity
By: Hubert Joly
In these unprecedented times, corporate leaders are being put to the test. Many just last summer had signed the Business Roundtable Statement of Purpose that committed their companies to serving all stakeholders. The pandemic is the first test of these principles. The... View Details
Joly, Hubert. "A Time to Lead with Purpose and Humanity." Harvard Business Review Digital Articles (March 24, 2020).
Manage Your Team's Collective Time
Time management is a group endeavor. Harvard Business School Professor Leslie Perlow shares how the payoff goes far beyond morale and retention. View Details
- April 1997
- Article
New Product Development Structures and Time to Market
By: S. Datar, C. Jordan, S. Kekre, S. Rajiv and K. Srinivasan
Keywords: Product Development
Datar, S., C. Jordan, S. Kekre, S. Rajiv, and K. Srinivasan. "New Product Development Structures and Time to Market." Management Science 43, no. 4 (April 1997): 452–464.